<div class="nav-button" >
    <button  class="nav-button-title" ng-disabled="freeBtnAble" name='FREE' ng-click="updateStatus('FREE')" type="button" value="空闲">空闲</button>
    <button  class="nav-button-title" ng-disabled="offLineBtnAble" name='OFFLINE'  ng-click="updateStatus('OFFLINE')" type="button" value="已下线">已下线</button>
    <button  class="nav-button-title" ng-disabled="checkBtnAble" name='CHECK'  ng-click="updateStatus('CHECK')"  value="已入住">已入住</button>
    <button  class="nav-button-title" ng-disabled="deleteBtnAble"  ng-class=" " ng-click="clickDelete()" type="button" value="删除">删除</button>
</div>